Question: Do atoms ever actually touch each other?

Sameed Muhammed answered on 21 Nov 2019:

On the very tiny scale, the electrons of one atom repel the electrons of a nearby atom. Effectively, the electrons never touch each other, so you can say that atoms never “touch”. But then it really depends on the definition of “touch”. For example if you push your friend with your hands, technically the electrons in your hand never touched the electrons on his/her body, but I don’t think he/she will accept this argument 🙂